添加Section
该 Document.add_section()方法允许在文档末尾开始一个新Section。调用此方法后添加的段落和表格将出现在新的Section中:
>>> current_section = document.sections[-1] # last section in document
>>> current_section.start_type
NEW_PAGE (2)
>>> new_section = document.add_section(WD_SECTION.ODD_PAGE)
>>> new_section.start_type
ODD_PAGE (4)